Marketable Securities (Tables)

12 Months Ended

Mar. 31, 2015

Marketable Securities [Abstract]

Marketable Securities

Total		<1 Year		1–3 Years		3–5 Years
$	91,013,095	$	20,099,288	$	40,220,312	$	30,693,495

Amortized Cost And Approximate Fair Values Of Marketable Securities

	As of March 31, 2015									As of March 31, 2014
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value		Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Corporate bonds	$	88,456,886	$	1,185,469	$	(16,371	)	$	89,625,984	$	88,567,210	$	1,613,822	$	(246,973	)	$	89,934,059
Municipal bonds	1,383,839		3,272		-			1,387,111		4,436,430		16,521		(4,609		)	4,448,342
Total	$	89,840,725	$	1,188,741	$	(16,371	)	$	91,013,095	$	93,003,640	$	1,630,343	$	(251,582	)	$	94,382,401

Gross Unrealized Losses And Fair Values Of Investments By Investment Category And Length Of Time

		Less Than 12 Months					12 Months or Greater					Total
		Fair Market Value		Gross Unrealized Losses			Fair Market Value		Gross Unrealized Losses			Fair Market Value		Gross Unrealized Losses
As of March 31, 2015
	Corporate bonds	$	3,015,900	$	(163	)	$	2,590,240	$	(16,208	)	$	5,606,140	$	(16,371	)
	Municipal bonds	-		-			-		-			-		-
	Total	$	3,015,900	$	(163	)	$	2,590,240	$	(16,208	)	$	5,606,140	$	(16,371	)
As of March 31, 2014
	Corporate bonds	$	34,761,683	$	(246,973	)	$	-	$	-		$	34,761,683	$	(246,973	)
	Municipal bonds	1,418,742		(4,609		)	-		-			1,418,742		(4,609		)
	Total	$	36,180,425	$	(251,582	)	$	-	$	-		$	36,180,425	$	(251,582	)